Treatment

Under IV sedation, the area was surgically exposed, the lesion was curetted (Figure 2) and tooth # 32 was extracted. The area healed without any comlpications

Incisional and excisional biopsy

The biopsy specimen was large and was decalcified prior to embedding. It was embedded in three separate blocks and all demonstrated a bone forming neoplasm of osteoblast origin. The neoplasm is made up of bony trabeculae with viable and plump osteocytes occupying large lacunae (Figure 3). The bony trabeculae are surrounded by young osteoblasts and a significant number of osteoclasts (Figure 4). The connective tissue stroma supporting the mineralized bone is loose and vascular.

 

Figure 2 This photograph is taken during surgery partially exposing the encapsulated lesion.

Figure 3 Low power (x100) histology shows a neoplasm of bone origin with cancellous bone surrounded by young osteoblasts and osteoclasts and supported by vascular connective tissue stroma.

Figure 4 High power (x200) histology shows cancellous bone with young osteocytes occupying large lacunae. The bony trabeculae are surrounded by active osteoblasts and osteoclasts and are supported by vascular connective tissue stroma.